Channel Length Modeling and Experimental Demonstration of Adaptive Threshold Under-sampled CamCom for Low-SNR Transmitters

Muhammad Asim Atta, Babar Hussain, Amine Bermak

Research output: Contribution to journalArticle

Abstract

Under-sampled camera communication (CamCom) systems realized using fast shutter speeds limit the communication channel length and impose restrictions on the minimum signal-to-noise ratio (SNR) requirement of LED based transmitters. In this work, we present an empirical model to estimate the effective channel length of a CamCom system. Based upon the model, a transceiver methodology is proposed and demonstrated to support low-SNR transmitters, thereby increasing the effective communication distance of an under-sampled CamCom link. Moreover, an adaptive threshold decoding technique is presented to make the system robust against the variable frame rate phenomenon. The proposed methodology can be utilized to increase the communication distance of under-sampled CamCom links for infrastructure-to-vehicle (I2V) communication employing low-SNR transmitters.

Original languageEnglish
JournalIEEE Photonics Journal
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

transmitters
Transmitters
Signal to noise ratio
signal to noise ratios
Demonstrations
communication
Cameras
cameras
thresholds
Communication
Telecommunication links
Communication systems
Camera shutters
telecommunication
Transceivers
methodology
Light emitting diodes
Decoding
shutters
transmitter receivers

Keywords

  • under-sampled VLC
  • UPSOOK
  • Visible light communication (VLC)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Channel Length Modeling and Experimental Demonstration of Adaptive Threshold Under-sampled CamCom for Low-SNR Transmitters. / Atta, Muhammad Asim; Hussain, Babar; Bermak, Amine.

In: IEEE Photonics Journal, 01.01.2018.

Research output: Contribution to journalArticle

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